REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday 8 February 2019

AUDIOVOX FPE3000 _ PRIMA LC30B1 - LCD TV _ TROUBLESHOOTING_SOFTWARE UPDATE

AUDIOVOX FPE3000 _ PRIMA LC30B1 - LCD TV _ TROUBLESHOOTING_SOFTWARE UPDATE





TROUBLESHOOT [CUSTOMER]



Picture is out of focus or jumping
  • Bad status in signal receiving
  • Maybe broadcast signal itself is not good
  • Check if the outdoor antenna is disconnected.
  • Check if the antenna is correctly oriented.
Fringe in picture
  • Check if the antenna is correctly oriented.
  • Maybe there is electric wave reflected from hilltop or building
Picture is interfered by stripe
shaped bright spots
  • Possibly due to interference from automobile, train, high voltage transmission line, neon lamp etc.
  • Maybe there is interference between antenna and power supply line. Please try to separate them in a longer distance.
There appear streaks or light color
on the screen
  • Check if interfered by other equipment and if interfered possibly by the equipment like transmitting antenna, non professional radio station and cellular phone.
Unable to switch the power on
  • Check to see if the power plug has been inserted properly into the socket.
No picture and sound
  • Check to see if the power supply of liquid crystal TV has been switched on. (as can be indicated by the red LED at the front of the TV set)
  • See if it’s receiving the signal that is transmitted from other source than the station
  • Check if it’s connected to the wrong terminal or if the input mode is correct.
  • Check if the signal cable connection between video frequency source and the liquid crystal TV set is correct.
Deterioration of color phase or color tone
  • Check if all the picture setups have been corrected.
Screen position or size is not proper
  • Check is the screen position and size is correctly set up.
Picture is twisted and deformed.
  • Check to see if the picture-frame ratio is properly set up.
Picture color changed or colorless.
  • Check the “Component” or”RGB”settings of the liquid crystal TV set and make proper adjustment according to the signal types.
Picture too bright and there is distortion in the brightest area
  • Check if the contrast setting is too high.
  • Possibly the output quality of DVD broadcaster is set too high.
  • It maybe also due to improper terminal connection of the video frequency signal in a certain position of the system.
Picture is whitish or too bright in the darkest area of the picture
  • Check if the setting for the brightness is too high
  • Possibly the brightness grade of DVD  player (broadcaster) is set too high.
No picture or signal produced from the displayer if “XXX in search” appears.
  • Check if the cable is disconnected.
  • Check if it’s connected to the proper terminal or if the input mode is correct.
There appears an indication - “outside the receivable scope)
  • Check if the TV set can receive input signal. The signal is not correctly identified and VGA format is beyond the specified scope.
Remote control cannot work properly
  • Check if the batteries are installed in the reverse order.
  • Check if the battery is effective.
  • Check the distance or angle from the monitor.
  • Check if there is any obstruct between the remote control and the TV set.
  • Check if the remote control signal- receiving window is exposed to strong fluorescence.
No picture and sound, but only hash
  • Check if the antenna cable is correctly connected, or if it has received the video signal correctly.
Blur picture
  • Check if the antenna cable is correctly connected.
  • Of if it has received the right video signal.
No sound
  • Check if the “mute” audio frequency setting is selected.
  • Check if the sound volume is set to minimum.
  • Make sure the earphone is not connected.
  • Check if the cable connection is loose.
When playing VHS picture search tape, there are lines at the top or bottom of the picture.
When being played or in pause VHS picture search tape sometimes can’t provide stable picture, which may lead to incorrect display of the liquid crystal TVIn this case press “auto” key on the remote control so as to enable the liquid crystal TV set to recheck the signal and then to display correct picture signal



SOFTWARE UPGRADING


  • Select a serial connection wire and a VGA connection wire and then connect them by means of a patch panel; Use a serial wire to connect the PC to the patch panel and set TV set to off state; Open the software upgrade file holder and double click; "FlashUpgrader NT.exe. icon.
  • The following interfaces will show up after running the program:




  • Based on the computer features, set up the serial port(COM Port). Select corresponding serial port (if it’s unable to FLASH WRITE, change to another port). Baud is selected to be 115200. Then select Reset Target After Download. Click FLASH push button, it’s ready to run.
  • Switch on TV set the FLASH write program begins to run;





  • After FLASH write is over, push button “cancel” will become flash. Then shut the main power supply and it’s OK just switch it on again.

Note: Do not shut the power off or turn the TV set on during the FLASH write. Otherwise it may lead to no way for flash to rewrite.